65,000-Year-Old “Swiss Army Knives” Suggest Social Connectivity Among Early Humans
The ubiquitous Swiss Army knife was first invented in the late 19th century, but humans have been using and sharing similar multipurpose tools for much, much longer. Sixty-thousand to 70,000 years ago, Homo sapiens ventured out of Africa, eventually landing in Asia, Australia, Europe, and the Americas. While that migration was not the first, scientists […]